Question

我正在创建一个待办事项列表以获得乐趣，我在将列表带入不同功能时遇到了麻烦。该程序的目标是用户按下“新任务”按钮并输入内容，然后将字符串添加到列表中，然后通过列表框显示。这是我到目前为止所拥有的。

P.S忽略DelTask功能，因为它仍然是WIP

from Tkinter import *
import Tkinter
import tkMessageBox
import sys

count = 0

class ToDoList:

def __init__(self):

    #print testlist


    self._count = 0
    self.main_window = Tkinter.Tk()

    #size   
    self.main_window.minsize(1000,800)
    self.main_window.maxsize(1000,800)

    #frames
    self.title_frame = Tkinter.Frame(self.main_window)
    #self.side_frame = Tkinter.Frame(self.main_window)

    #labels
    self.title = Tkinter.Label(self.title_frame, text = 'To Do List', font = ("Purisa",30))
    self.title2 = Tkinter.Label(self.title_frame, text = 'By Kevin', font = ("Purisa",15))

    #buttons
    self.newtask_button = Tkinter.Button(self.main_window, text='New Task', command = self.NewTask, width=20)
    self.newtask_button.grid()

    self.deltask_button = Tkinter.Button(self.main_window, text='Delete Task', command = self.DelTask, width=20)
    self.deltask_button.grid()




    #execute
    self.title.pack(side='top')
    self.title2.pack(side='top')
    self.title_frame.pack(side='top')
    self.newtask_button.pack(padx=4, pady=4)
    self.deltask_button.pack(padx=1, pady=1)

    #list stuff
    listbox = Listbox(self.main_window, width=100, height = 100, font=('Fixed',20) )
    listbox.pack()


    #print testlist


    Tkinter.mainloop()

def NewTask(self):
    self.newtask_window = Tkinter.Tk()


    self.newtask_window.minsize(250,150)
    self.newtask_window.maxsize(250,150)

    #text
    self.task_label = Tkinter.Label(self.newtask_window, text='Enter Task.')
    self.task_label.pack()

    #entry
    self.task_entry = Tkinter.Entry(self.newtask_window, width=30)
    self.task_entry.pack()


    #button
    self.task_button = Tkinter.Button(self.newtask_window, text='Ok', command = self.NewTaskCount, width = 20)
    self.task_button.pack()


    Tkinter.mainloop()

def NewTaskCount(self):
    listbox = Listbox(self.main_window, width=100, height = 100, font=('Fixed',20) )
    listbox.pack()
    self._count += 1
    self.newtask_window.destroy()

def DelTask(self):
    tkMessageBox.showinfo('Title', 'Task Deleted')

 program = ToDoList()

Answer 1

您正在错误地使用Tkinter。您应该始终只创建Tk类的一个实例，并在程序的生命周期中恰好调用mainloop一次。如果您想要多个窗口，则在创建Tk实例后，任何其他窗口都需要是Toplevel的实例。

使用Tkinter在函数之间传递列表

1 个答案: